866802134 has 12 divisors (see below), whose sum is σ = 1429149372. Its totient is φ = 394000860.

The previous prime is 866802109. The next prime is 866802143. The reversal of 866802134 is 431208668.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1790672 + ... + 1791155.

It is an arithmetic number, because the mean of its divisors is an integer number (119095781).

Almost surely, 2^866802134 is an apocalyptic number.

866802134 is a deficient number, since it is larger than the sum of its proper divisors (562347238).

866802134 is a wasteful number, since it uses less digits than its factorization.

866802134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3581851 (or 3581840 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 866802134 is about 29441.5035961141. The cubic root of 866802134 is about 953.4691752516.

The spelling of 866802134 in words is "eight hundred sixty-six million, eight hundred two thousand, one hundred thirty-four".